Connection
Check with your local Water Authority as to any specific
requirements. A licenced plumber will need to make a connection
to the mains and install a brass ball valve and backflow
prevention valve. Check locations of Gas, Electricity, Water and
Telstra before digging.
Tools
Make sure you have the necessary tools - Tape measure,
Trenching shovel/spade, hacksaw, hose, wrench, rake, multigrips
and scale rule.
Marking out & trenching
Ensure that all sprinklers are marked out as per the plan.
Assemble all screwed fittings using thread tape on fittings
before valves. Thread tape is not necessary downstream of valves.
Trenches should be 100mm wide and 250mm deep. If any pipes pass
through any garden areas, cover them with bricks or hardwood
before backfilling so they will not be damaged by garden forks
etc. If the ground is hard, wet it down with an inverted soaker
hose.
PVC Pipe Installation
For PVC pipe cut the pipe with a hacksaw or PVC pipe cutter.
Ensure the ends are square. Use a file to clean off any burrs.
The inside of the socket and the outside of the pipe should be
cleaned and primed with Priming Fluid. Ensure the pipe and
fittings are dry. PVC cement will not work on wet pipe. Brush
cement on the outside of the pipe and the inside of the socket.
Slip the pipe into the fitting and give it a quarter turn. Hold
for 20 secs and wipe away any excess cement. Do not pressurise
for 24 hours.
Low Density Pipe Installation
If using Low Density poly pipe, cut the end square. Place a
ratchet clip over the pipe. Push the poly pipe onto the fitting
and push the ratchet clip over the fitting. Tighten the clip with
multigrips.
General
Starting from the water source, install the pipe and solenoid
valves taking care to keep the pipework free from dirt, stones
and other debris. Flush the pipework before installing the
solenoid valves. Ensure that solenoid valves are pointing in the
right direction. They have arrows indicating the direction of
flow.
A hose with a straight piece of pipe may be used to tunnel
under paths and driveway. Turn on the hose to full pressure and
bore through in a back and forwards motion.
Once the solenoid valves have been installed, connect the
irrigation wire using waterproof joiners. Use one color for a
common which connects to one wire of each valve, and a separate
color for each of the remaining wires. Lay the cable loosely in
the trench, preferably under the pipe.
Where pop-up sprinklers are to be installed along driveways
and paths, leave sufficient room that they will not be damaged by
lawn edgers.
Install valve boxes over each solenoid valve to make locating
and servicing much easier. The cover of the valve boxes should be
level with the ground.
Sprinklers should be installed with the top at ground level.
Lower could result in the spray catching in long grass or higher
could result in damage from lawn mowers.
Before turning the system on, leave the top out of the last
sprinkler on each line. Flush each line thoroughly so no dirt or
debris affects the performance of any sprinklers.
Operation
From the experience of the watering needs of your lawns and
gardens, set the watering times for each zone as well as the days
you wish to water. Times will be greater in the middle of summer,
while the controller may need to be switched off for periods in
winter. When the controller is turned off, do so at the
controller, not the power point. Back-up batteries generally last
for 2 years, but only about two weeks if the power supply is
turned off.
Only one zone should operate at a time. Follow the
manufacturers instructions for the options you can use for
different controllers.